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MS Query Case When syntax error

Posted on 2015-01-24
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Last Modified: 2015-01-24
Can someone correct the syntax of the following MS Query SQL?  There is an error in the case when statement to sum the SIP field.  The SIP field is a Y/N field.

SELECT

tbl_NHSN_SSI_Pts.SurgeonID,
tbl_NHSN_SSI_Pts.Surgeon,  
Count(tbl_NHSN_SSI_Pts.SurgeonID) AS 'SURG',

sum(CASE WHEN tbl_NHSN_SSI_Pts.SIP = 'Yes' then 1 else 0 end ) as 'INF'

FROM `P:\IC-Employee Health\SSI\NHSN.accdb`.tbl_NHSN_SSI_Pts tbl_NHSN_SSI_Pts



GROUP BY tbl_NHSN_SSI_Pts.Surgeon, tbl_NHSN_SSI_Pts.SurgeonID
ORDER BY tbl_NHSN_SSI_Pts.Surgeon, tbl_NHSN_SSI_Pts.SurgeonID


Thanks

Glen
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Question by:GPSPOW
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4 Comments
 
LVL 18

Expert Comment

by:Simon
ID: 40568424
By Yes/No field do you mean a bit field or a character field that stores "Yes" and "No". If the latter then your case statement should work.
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Author Comment

by:GPSPOW
ID: 40568429
Yes.
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LVL 18

Accepted Solution

by:
Simon earned 2000 total points
ID: 40568432
For a bit datatype field, use this version of the CASE syntax

sum(CASE tbl_NHSN_SSI_Pts.SIP when 1 then 1 else 0 end ) as 'INF'
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Author Closing Comment

by:GPSPOW
ID: 40568447
Thanks

I also found that if I change it to a MS-Access  IIF clause this works too.

Glen
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